Patent classifications
A61B5/015
SYSTEM, METHOD, AND APPARATUS FOR TEMPERATURE ASYMMETRY MEASUREMENT OF BODY PARTS
System, apparatus, and method for automatic detection of arthritis according to temperature asymmetry estimation in contralateral joints is presented. Simultaneously recorded thermogram and the optical image of an inspected joint and its contralateral joint are sent to the processing unit, where they are stored, processed, and analyzed. The system, apparatus, and method automatically detects outlines of joints in thermograms and optical images. Grid of points of interest is distributed inside the inspected and the contralateral joint's outline. Temperature maps are calculated according to both grids points and the temperature disparity map is estimated. The set of inflammation regions is obtained by analyzing the temperature disparity map and collecting adjacent points containing temperature differences surpassing the threshold. The system, apparatus, and method are non-invasive and non-contact, and suitable for real world environments with natural home or health care institutions background.
Visible-light-image physiological monitoring system with thermal detecting assistance
A visible-light-image physiological monitoring system with thermal detecting assistance is disclosed. The system takes a visible-light image and a thermal image of a body at the same time. A processing unit identifies a body feature of the visible-light image and determines a coordinate of the feature. In a learning mode, an initial temperature of the body feature is determined from the thermal image according to the coordinate of the body feature. After then, a physiological status monitoring mode is executed to monitor the temperature changes of the body feature and output an alarm when the temperature is determined to be abnormal. Therefore, a monitoring accuracy of the visible-light-image physiological monitoring system is increased and avoids transmitting false alarms or no alarms.
DEVICE FOR MONITORING HIFU TREATMENTS
Ultrasound device configured to carry out a HIFU treatment and to detect in real time during the HIFU treatment the temperature distribution in the area of treatment, comprising: an ultrasound probe comprising at least an array of piezoelectric or CMUT transducers, —piloting means of said ultrasound probe, computing means configured to receive and store said raw ultrasound signals reflected by said tissues and acquired by each of said piezoelectric or CMUT transducers, to process said reflected raw ultrasound signals in order to generate an ultrasound image, as well as to carry out other processing on said raw ultrasound signals reflected by said tissues, characterized in that computer programs are loaded on said computing means, configured to carry out the method for determining the actual acoustic heating rate of tissues, comprising the following steps: a) identifying, inside an ultrasound image (14), a region of interest (15) inside which an area to be treated (16) is provided, b) assigning a starting temperature distribution, by means of which a temperature value is assigned to each point of ROI, c) emitting a high intensity ultrasound beam (100) focused on a focal point (11) contained in said ROI for a predetermined time interval, and subsequently a broadband ultrasound pulse (200), and detecting the ultrasound signal reflected and/or emitted by the tissues under treatment, d) carrying out the frequency transform of said reflected ultrasound signal in response to said broadband ultrasound pulse (200), in order to obtain a reference frequency spectrum (200s), e) repeating steps c) and d) iteratively, thus obtaining a frequency spectrum for each iteration, f) assuming that the temperature at the focus (11) is equal to a predetermined temperature and function of the tissue in the treatment step when the frequency spectrum (202s) detected in response to a broadband ultrasound pulse (202) comprises a plurality of peaks (2021) not provided in the reference frequency spectrum (200s), g) determining the actual acoustic heating rate Q as a function of said predetermined temperature, of the intensity of said high intensity ultrasound beam (100).
Feedback device and method for providing thermal feedback using the same
A method for providing a thermal feedback, includes executing a virtual reality application providing a virtual space that includes a virtual area to which an area temperature attribute is assigned, and a virtual object to which an object temperature attributed is assigned. An area event that reflects that a player character enters the virtual area is detected. A feedback device is controlled to output thermal feedback associated to the area temperature attribute when the area event is detected, the feedback device outputting the thermal feedback using a thermoelectric element performing a thermoelectric operation. An object event reflecting the player character is influenced by the virtual object is detected. The feedback device is controlled to override the thermal feedback associated to the area temperature attribute and output thermal feedback associated to the object temperature when the object is detected while the player character is in the virtual area.
Thermal Imaging Device Performing Image Analysis To Facilitate Early Detection Of Distal Extremity Altered Perfusion States
A thermal imaging extremity abnormal perfusion detector system includes a computer processor configured to receive, analyze and store thermal images and a thermal imaging camera communicatively coupled to the processor, and configured to take at least one of photograph and video thermal images and output the thermal images to the processor. The camera is configured to be secured adjacent a patient workspace that is shaped to contain a patient; and points the thermal imaging camera at the workspace such that, responsive to taking at least one thermal image, the at least one thermal image contains the patient who is placed within the workspace. The computer processor is configured to analyze the at least one thermal image and determine from the at least one thermal image a difference in thermal states indicating altered perfusion in an extremity of the patient.
SYSTEMS AND METHODS FOR COMBINING THERMAL AND/OR OPTICAL IMAGING WITH DIGITAL RADIOGRAPHIC IMAGING
An example radiography scanning system includes: a radiation detector configured to generate digital images based on incident radiation; a radiation source configured to output the radiation toward the radiation detector; a thermal sensor configured to capture thermal images and having a field of view that at least partially overlaps a projection field of the radiation; and a computing device configured to: control the radiation source; receive the digital images from the radiation detector; receive the thermal images from the thermal camera; and output the digital images and the thermal images, in real-time, to a display device.
Presence And Vitals Detection Of Living Subject Using LWIR And RADAR Systems
A method and system for presence and vitals detection of a living subject is disclosed herein. The system comprises a passive long wave infrared (“LWIR”) sensor, a radar, a processor and a user interface. The LWIR sensor is utilized to detect block-body radiation originating from a living subject. The processor is configured to run an algorithm to perform digital signal processing on data provided by the radar and the LWIR sensor to generate presence and vitals information for the living subject for communication to the user interface.
BODY TEMPERATURE PREDICTION APPARATUS AND BODY TEMPERATURE PREDICTION METHOD, AND METHOD FOR TRAINING BODY TEMPERATURE PREDICTION APPARATUS
An apparatus for predicting a body temperature is provided. The apparatus includes an external environment/activity estimation neural network configured to detect at least one facial region as a region of interest from an input thermal image of a target person to be measured, and estimate an environmental type including an external temperature and participation in physical activity based on a temperature of the at least one region of interest. The apparatus further includes a body temperature prediction neural network configured to predict a body temperature of the target person based on the environmental type estimated by the external environment/activity estimation neural network and the temperature of the at least one region of interest.
HUMAN FALLING DETECTION EMPLOYING THERMAL SENSOR AND IMAGE SENSOR
There is provided a human falling detection system including an image sensor, a thermal sensor and a microphone. The image sensor captures an image frame that is used to identify a face and a height-width ratio of a human image. The thermal sensor is used as a filter for filtering out a living body and captures a thermal image that is used to identify a height-width ratio of a human thermal image. The microphone records a time stamp of an abrupt sound appearing.
Method and system for correcting focus location in magnetic resonance guided focused ultrasound surgery
The present disclosure provides a method for determining an ultrasound focus location in a thermal image. In one aspect, the method includes obtaining a magnetic resonance thermal image of a tissue heated by a focused ultrasound and correcting a chemical shift and a k-space shift of a monitored ultrasound focus location in the magnetic resonance thermal image such that the monitored ultrasound focus location is aligned with a real physical ultrasound focus location. Correcting the chemical shift includes correcting a first spatial error of the monitored ultrasound focus location caused by resonance frequency changes of hydrogen nuclei due to environmental differences of water molecules. Correcting the k-space shift includes correcting a second spatial error of the monitored ultrasound focus location caused by temperature error due to spatial variations of a primary magnetic field.